Chemistry

Question Analysis
This question tests the student's ability to determine the percent composition of carbon in a hydrocarbon compound using the given molar masses.

Key Concept Explanation
The percent composition of an element in a compound is found by dividing the total mass of the element in one mole of the compound by the molar mass of the compound, then multiplying by 100%.

Step-by-step Solution
1. Calculate the molar mass of :
Molar mass of C = 12.0 g/mol (4 atoms of C)
Molar mass of H = 1.0 g/mol (10 atoms of H)
Molar mass of

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